Hueso, 44, was stopped at 2:24 a.m. by CHP officers who spotted him driving the wrong way on a one-way street, 15th Street near the state Capitol, CHP Officer Julie Powell said.

Hueso was driving a state car, a white Ford Fusion at the time, she said.

"The officers observed objective signs and symptoms of alcohol intoxication," Powell said, adding that a subsequent field investigation determined that Hueso was under the influence of alcohol and "unable to safely operate the vehicle."

Hueso was taken into custody by the officers and booked into Sacramento County Jail at 3:27 a.m., county records indicate. He faces two possible misdemeanor charges, including driving with a blood alcohol level of 0.08 or more. Bail was set at $1,482.

It has been a rough year for California Democrats as three others have found themselves in legal trouble.

Sen. Rod Wright of Inglewood was convicted for lying about living in his district, while Sens. Ron Calderon of Montebello and Leland Yee of San Francisco are fighting unrelated federal corruption charges.